The comparison of the $p_{\rm{T}}$-differential ${v}_2$ for $\pi^{\pm}$, $\mathrm{K}$ and p+$\overline{\mathrm{p}}$ for the 10-20$\%$ centrality class of Pb-Pb and Au-Au collisions at the LHC and RHIC, respectively. The RHIC points are extracted from (STAR) and (PHENIX). |